ADLINK PXIe-9848 - Manual (Page 28)

18 Operations
3.3 Trigger Source and Trigger Modes
This section details PXIe-9848 triggering operations. All eight AI
channels share the same trigger source. Each of five types of trig-
ger source cooperates with five trigger modes to accommodate
various data acquisition applications. For more details on pro-
gramming the PXIe-9848, please refer to the software opera-
tion manual.
3.3.1 Trigger Sources
Figure 3-3: Trigger Architecture of the PXIe-9848
The PXIe-9848 requires a trigger to implement acquisition of data.
Configuration of triggers requires identification of trigger
source. The PXIe-9848 supports internal software trigger,
external digital trigger, PXI_STAR trigger, PXI Express STAR trig-
ger (PXIe_DSTARB), and PXI Trigger Bus [0.7].
Software Trigger
The software trigger, generated by software command, is
asserted immediately following execution of specified function
calls to begin the operation.
Trigger Source Mux
Analog
Trigger
PXI Interface
PXI_STAR
PXI Trigger Bus[0:7]
Software Trigger
Analog CH0
Analog CH1
TRG IN
SMB Connector
Digital Trigger Input
Trigger
Decision
Trigger Output Mux
PXI Trigger
Bus[0:7]
PXI Interface
SSI_TRIG1
SSI_TRIG2
SSI_START_OP
To Internal
Circuit
Analog CH2
Analog CH3
Analog CH4
Analog CH5
Analog CH6
Analog CH7
Analog
Trigger
Selection
PXIe_DSTARB